CO DWR · BOCPINCO

SOUTH BOULDER CREEK

CO DWR · BOCPINCOLIVE

South Boulder Creek Above Gross Reservoir At Pinecliffe

BOULDER COUNTY, CO39.9317°N, -105.4230°W Updated 1 d ago

FLOW RATE

77.5cfs

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

77.5cfs

Optimal band: 66–89 cfs

PERIOD HIGH

77.5cfs

PERIOD LOW

77.5cfs

RUNNABLE

100%

last 1 day in band

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

13.6in

≈ normal

13.55 in of precipitation so far this year — about average for this point in the season (normal 15.6 in).

YTD Total

13.6in

This year so far

Normal to Date

15.6in

30-yr average

Typical Range

11.2–19.0in

10th–90th pct YTD

Departure

-13%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 0.95" · normal 1.06" (0.4–1.9)

Jan

Feb: 1.06" · normal 1.18" (0.5–2.0)

Feb

Mar: 1.82" · normal 2.07" (1.2–3.1)

Mar

Apr: 2.05" · normal 3.09" (1.8–4.6)

Apr

May: 5.99" · normal 4.09" (2.7–5.4)

May

Jun: 1.20" · normal 3.42" (1.9–6.2)

Jun

Jul: 0.48" (so far)· normal 3.95" (1.9–5.7)

Jul

Aug: normal 3.59" (1.5–5.7)

Aug

Sep: normal 2.41" (1.0–3.7)

Sep

Oct: normal 1.87" (0.8–3.1)

Oct

Nov: normal 1.28" (0.7–2.2)

Nov

Dec: normal 0.99" (0.5–1.7)

Dec

Baseline 1991–2020 · Source: Open-Meteo10:04 AM

Your History · South Boulder Creek Above Gross Reservoir At Pinecliffe

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Station Location

39.9317, -105.4230

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DATA · CO DWR · NOAA · NWSUPDATED 2026-07-06 06:00 UTC

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